Solder-solvent.



WILLIAM FREDRICK KOPER, OF CHILLICOTHE, OHIO.

SOLDER-SOLVENT.

noamaae.

N 0 Drawing.

To all whom it may concern:

Be it known that 1, WILLIAM F. Koren, a citizen of the United States, residing at Chillicothe, in the county of Ross and State of Ohio, have invented certain new and useful Improvements in Solder-Solvents, of which the following is a specification.

My invention relates to an improvement in solvents for solder, and the object is to provide a compound for removing all impurities and grit from solder, which would cause the solder to become useless for the purposes for which it is intended.

The composition of matter consists of:

Ammonium chlorid- 29 per cent. Sulfur 43 Rosin 2 Parai'lin 9 Mutton tallow l1 Salt 5 Red alkanet root l which are all commingled together and made preferably into tablet form.

When it is desired to clean or purify a pot of metal such as solder, Babbitt metal and the like, a tablet or water is dropped into the metal after the metal has been heated to a molten state. The temperature of the molten metal should not be excessive but to a temperature suificient to char a piece of paper dark brown. Then after the wafer is inserted into the molten metal, the molten metal is thoroughly agitated while the wafer is dissolving so as to bring all of the metal Specification of Letters Patent.

Application filed November 16, 1911.

Patented May 26, 1914.

Serial No. 860,698.

in contact with the composition, and thereby destroy all impurities in the molten metal. The ammonium chlorid and rosin serve to prevent oxidation of the metals, and the tallow and paraffin assist in making a paste as well as acting as reducing agents, while the sulfur forms a molten flux on the surface of the bath to entrain the oxidized compounds floating thereon. If solder is being used, for instance, and some impurity or foreign sub stance should get into the metal, when it is ready for use, it would be useless, and would have to be thrown away, but by dissolving a wafer therein containing the composition above set forth, the impurities can be re moved, and thereby save the molten metal.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A composition of matter for purifying metals in a molten state, consisting of ammonium chlorid, sulfur, rosin, paraflin, mutton tallow, salt and red alkanet root.

2. A composition of matter for purifying metals in a molten state, consisting of ammonium chlorid 29%, sulfur 43%, rosin 2%, paraflin 9%, mutton tallow 11%, salt 5%, red alkanet root 1%.

In testimony whereof I aifix my signature, in the presence of two witnesses.

M. FREDRICK KOPER.

Witnesses:

JOHN FERDINAND BURDIGK, G120. P. OBERMEYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

